[INFO] fetching crate oreutils 0.0.3...
[INFO] checking oreutils-0.0.3 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate oreutils 0.0.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate oreutils 0.0.3
[INFO] finished tweaking crates.io crate oreutils 0.0.3
[INFO] tweaked toml for crates.io crate oreutils 0.0.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate oreutils 0.0.3 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 211 packages to latest compatible versions
[INFO] [stderr]       Adding env_proxy v0.3.1 (available: v0.4.1)
[INFO] [stderr]       Adding reqwest v0.9.24 (available: v0.12.24)
[INFO] [stderr]       Adding semver v0.9.0 (available: v1.0.27)
[INFO] [stderr]       Adding structopt v0.2.18 (available: v0.3.26)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] [stderr]       Adding which v2.0.1 (available: v8.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04428be9dcf6b470770cdd39802fedda72c3359b7d28a07a85348c37413213af
[INFO] running `Command { std: "docker" "start" "-a" "04428be9dcf6b470770cdd39802fedda72c3359b7d28a07a85348c37413213af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04428be9dcf6b470770cdd39802fedda72c3359b7d28a07a85348c37413213af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04428be9dcf6b470770cdd39802fedda72c3359b7d28a07a85348c37413213af", kill_on_drop: false }`
[INFO] [stdout] 04428be9dcf6b470770cdd39802fedda72c3359b7d28a07a85348c37413213af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c715982367cedbc8b8a9ba448987f810862edb515126e8cf65db514f1d9d6503
[INFO] running `Command { std: "docker" "start" "-a" "c715982367cedbc8b8a9ba448987f810862edb515126e8cf65db514f1d9d6503", kill_on_drop: false }`
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[INFO] [stderr]     Checking oreutils v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/main.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Debug, StructOpt)]
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/main.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Debug, StructOpt)]
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `oreutils` (bin "oreutils" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `oreutils` (bin "oreutils") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "c715982367cedbc8b8a9ba448987f810862edb515126e8cf65db514f1d9d6503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c715982367cedbc8b8a9ba448987f810862edb515126e8cf65db514f1d9d6503", kill_on_drop: false }`
[INFO] [stdout] c715982367cedbc8b8a9ba448987f810862edb515126e8cf65db514f1d9d6503
